Predictika · Aortic arch stent graft orders

An AI sales agent's hybrid stent graft order, checked before it goes out

An AI sales agent prepares an order for an aortic arch hybrid stent graft for a hospital. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the configuration, arch zone, diameter and length rules and returns a verdict, every reason and the figures it computed.

Scope: Artivion E-vita Open Neo hybrid stent graft system (straight, branched and trifurcated; 26, 28 and 30 mm vascular graft; 20 to 40 mm stent graft) — all 45 catalog references. See everything this validator covers

This validator models orders for the Artivion E-vita Open Neo hybrid stent graft system, not just the scenarios shown below.

  • Catalog references — the straight, branched and trifurcated configurations with a 26, 28 or 30 mm vascular graft (100 mm untensioned) and a 20, 22, 24, 26, 28, 30, 33, 36 or 40 mm stent graft; each vascular graft diameter is made with only some stent graft diameters, and the stent graft lengths offered depend on the configuration and the diameter (the trifurcated one is made with the long stent graft only). The 45 references are those listed in the French HAS reimbursement opinions of 2021 and 2025.
  • Configuration and arch zone — straight for the island technique with the collar anastomosis in zone 2 or 3, branched for zones 1, 2 and 3, trifurcated for zones 0 and 1, as described on the Artivion product page and in the HAS opinions.
  • Total length — the 100 mm vascular graft plus the stent graft length, both columns of the HAS reference tables; a total length stated on the order is compared with that sum.

Any order for E-vita Open Neo that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (hospital contract pricing is not public, so this validator produces no price build-up or line-item quote), the clinical indication and the sizing of the stent graft against the patient's landing zone (the indications are listed in the HAS opinions but the instructions for use and sizing sheets, which Artivion publishes behind a login, were not read, so the validator does not judge them), NEXUS and the other Artivion aortic devices, heart valves and tissue products, and the approval status of the device in a given country.

The AI sales agentBuilds the stent graft order from the surgeon's case summary and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
A vascular and stent graft diameter the catalog does not make togetherOnly with care
A compatibility table of valid diameter pairs per configuration. It works, but it is another table to keep in step with every new size.		The diameter pair, length and configuration are checked together against the 45 references.
A stent graft length that the configuration does not offerOnly with care
The lengths offered depend on the configuration and on the diameter band, so the rule is a three-way table rather than a simple dependency.		Length is checked against configuration and diameter on every call, whatever order they were chosen in.
A stated total length that does not match the referencesOnly with care
The total is the 100 mm vascular graft plus the stent graft; a stated figure is a free-entry field that someone has to compare with it.		The total length is computed on every call and compared with the stated figure.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as a step is saved, so a rep often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the order; approval findings need a person to sign off; everything else is computed.

    
1The catalog has no E-vita Open Neo with a 26 mm vascular graft and a 28 mm stent graft; the 26 mm vascular graft comes with a 20, 22, 24 or 26 mm stent graft, the 28 mm with a 28 mm and the 30 mm with a 30, 33, 36 or 40 mm.
2The catalog has no E-vita Open Neo with a 28 mm vascular graft and a 30 mm stent graft; the 26 mm vascular graft comes with a 20, 22, 24 or 26 mm stent graft, the 28 mm with a 28 mm and the 30 mm with a 30, 33, 36 or 40 mm.
3The catalog has no E-vita Open Neo with a 30 mm vascular graft and a 26 mm stent graft; the 26 mm vascular graft comes with a 20, 22, 24 or 26 mm stent graft, the 28 mm with a 28 mm and the 30 mm with a 30, 33, 36 or 40 mm.
4The catalog has no E-vita Open Neo with a 30 mm vascular graft and a 25 mm stent graft; the 26 mm vascular graft comes with a 20, 22, 24 or 26 mm stent graft, the 28 mm with a 28 mm and the 30 mm with a 30, 33, 36 or 40 mm.
5The trifurcated configuration is offered with the long stent graft only; a 130 mm stent graft of 33 mm diameter is not offered, the length offered is 180 mm.
6The trifurcated configuration is offered with the long stent graft only; a 120 mm stent graft of 20 mm diameter is not offered, the length offered is 175 mm.
7A 175 mm stent graft of 33 mm diameter is not offered in this configuration; the lengths offered are 130 and 180 mm.
8A 130 mm stent graft of 30 mm diameter is not offered in this configuration; the lengths offered are 120 and 180 mm.
9A 180 mm stent graft of 22 mm diameter is not offered in this configuration; the lengths offered are 120 and 175 mm.
10The straight configuration is made for the island technique with the collar anastomosis in zone 2 or 3; it is not offered for an anastomosis in zone 1.
11The straight configuration is made for the island technique with the collar anastomosis in zone 2 or 3; it is not offered for an anastomosis in zone 0.
12The branched configuration is made for a collar anastomosis in zone 1, 2 or 3; for zone 0 the trifurcated configuration is the one made for it.
13The trifurcated configuration is made for a collar anastomosis in zone 0 or 1; it is not offered for an anastomosis in zone 2.
14The trifurcated configuration is made for a collar anastomosis in zone 0 or 1; it is not offered for an anastomosis in zone 3.
15The order states a total implant length of 260 mm; the 100 mm vascular graft plus the 130 mm stent graft is 230 mm.
16The order states a total implant length of 200 mm; the 100 mm vascular graft plus the 130 mm stent graft is 230 mm.
17The order states a total implant length of 260 mm; the 100 mm vascular graft plus the 175 mm stent graft is 275 mm.
18The trifurcated configuration is offered with the long stent graft only; a 130 mm stent graft of 36 mm diameter is not offered, the length offered is 180 mm.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Zone 0 arch repair: A trifurcated graft with a 30 mm stent graft for a zone 0 anastomosis

    
The agent's request. Please order one trifurcated Artivion E-vita Open Neo hybrid stent graft with a 30 mm vascular graft and a 30 mm by 120 mm stent graft, for a collar anastomosis in zone 0. The order lists the implant at 220 mm in total. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Trifurcated stent graft length not offered. The trifurcated configuration is offered with the long stent graft only; a 120 mm stent graft of 30 mm diameter is not offered, the length offered is 180 mm.
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2. Zone 0 arch repair: The agent resubmits after fixing the errors

    
The agent's request. Please order one trifurcated Artivion E-vita Open Neo hybrid stent graft with a 30 mm vascular graft and a 30 mm by 180 mm stent graft, for a collar anastomosis in zone 0. The order lists the implant at 280 mm in total. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. E-vita Open Neo catalog reference 95HG3030L 180-C03; the implant is 280 mm in total (100 mm vascular graft plus 180 mm stent graft).
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3. Configuration and size: A straight graft with a 26 mm vascular graft and a 33 mm stent graft for a zone 1 anastomosis

    
The agent's request. Please order one straight Artivion E-vita Open Neo hybrid stent graft with a 26 mm vascular graft and a 33 mm by 130 mm stent graft, for a collar anastomosis in zone 1. The order lists the implant at 230 mm in total. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Vascular and stent graft diameters not offered together. The catalog has no E-vita Open Neo with a 26 mm vascular graft and a 33 mm stent graft; the 26 mm vascular graft comes with a 20, 22, 24 or 26 mm stent graft, the 28 mm with a 28 mm and the 30 mm with a 30, 33, 36 or 40 mm.
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  • Straight configuration not for this arch zone. The straight configuration is made for the island technique with the collar anastomosis in zone 2 or 3; it is not offered for an anastomosis in zone 1.
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4. Configuration and size: The agent resubmits after fixing the errors

    
The agent's request. Please order one branched Artivion E-vita Open Neo hybrid stent graft with a 30 mm vascular graft and a 33 mm by 130 mm stent graft, for a collar anastomosis in zone 1. The order lists the implant at 230 mm in total. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. E-vita Open Neo catalog reference 95HG3033L 130-C02; the implant is 230 mm in total (100 mm vascular graft plus 130 mm stent graft).
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5. Diameter pair: A branched graft with a 28 mm vascular graft and a 30 mm stent graft

    
The agent's request. Please order one branched Artivion E-vita Open Neo hybrid stent graft with a 28 mm vascular graft and a 30 mm by 120 mm stent graft, for a collar anastomosis in zone 2. The order lists the implant at 220 mm in total. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Vascular and stent graft diameters not offered together. The catalog has no E-vita Open Neo with a 28 mm vascular graft and a 30 mm stent graft; the 26 mm vascular graft comes with a 20, 22, 24 or 26 mm stent graft, the 28 mm with a 28 mm and the 30 mm with a 30, 33, 36 or 40 mm.
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6. Diameter pair: The agent resubmits after fixing the errors

    
The agent's request. Please order one branched Artivion E-vita Open Neo hybrid stent graft with a 28 mm vascular graft and a 28 mm by 120 mm stent graft, for a collar anastomosis in zone 2. The order lists the implant at 220 mm in total. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. E-vita Open Neo catalog reference 95HG2828L 120-C02; the implant is 220 mm in total (100 mm vascular graft plus 120 mm stent graft).
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7. Outside the zones: A trifurcated graft for a zone 3 anastomosis

    
The agent's request. Please order one trifurcated Artivion E-vita Open Neo hybrid stent graft with a 28 mm vascular graft and a 28 mm by 180 mm stent graft, for a collar anastomosis in zone 3. The order lists the implant at 280 mm in total. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Trifurcated configuration not for this arch zone. The trifurcated configuration is made for a collar anastomosis in zone 0 or 1; it is not offered for an anastomosis in zone 3.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares an order for an aortic arch hybrid stent graft for a hospital. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the configuration, arch zone, diameter and length rules and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please order one straight Artivion E-vita Open Neo hybrid stent graft. The order lists the implant at 230 mm in total. The rest of the request is on screen.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with two findings, all in one answer. The catalog has no E-vita Open Neo with a 26 mm vascular graft and a 33 mm stent graft; the 26 mm vascular graft comes with a 20, 22, 24 or 26 mm stent graft, the 28 mm with a 28 mm and the 30 mm with a 30, 33, 36 or 40 mm. The straight configuration is made for the island technique with the collar anastomosis in zone 2 or 3; it is not offered for an anastomosis in zone 1.
    6. 
      
  6. The validator returned two blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the order are checked against each other.
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  7. What this shows: for a vascular and stent graft diameter the catalog does not make together, a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the product to Artivion E-vita Open Neo, branched configuration and the vascular graft diameter to 30 mm.
    10. 
      
  10. It calls the validator again.
    11. 
      
  11. This time the validator clears it.
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  12. Both earlier findings are cleared, and the validator's figure matches the order.
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  13. Two problems caught in one call, fixed in one pass, and a clean order. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    14.